Piedmont Weather Forecast

    • 53
    • 65

    Chance Rain

    • 54
    • 70

    Partly Sunny

    • 54
    • 70

    Partly Sunny

    • 56
    • 80

    Mostly Sunny

    • 57
    • 84

    Mostly Sunny

    • 57
    • 82

    Mostly Sunny

    • 56
    • 79

    Partly Sunny

Today 13 Sep Inner Portland Metro

Cloudy. A chance of rain Early, then rain likely. Highs in the mid 60s. Southwest wind 5 to 10 Mph. Chance of rain 70 percent. Rainfall Amounts less than a tenth of an inch.

Tonight 13 Sep Inner Portland Metro

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the lower 50s. Winds light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Piedmont Temperature Statistics

September Temperature

Portland, Portland International Airport (3.1 miles)

  • Lowest 8 September, 2026

    51.7 °F

  • Average September

    64.9 °F

  • Highest 9 September, 2026

    88.6 °F

Climate (2021–2026)

Portland, Portland International Airport (3.1 miles)

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  • Average Low 2021–2026

    48.3 °F

  • Average 2021–2026

    56.3 °F

  • Average High 2021–2026

    65.4 °F
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